What does it matter whether you are rich or poor, ___ you are happy.
We can see light in his office. He___________ be in his office.
When he looked up,he suddenly found himself________by a group of teenagers,________looked at him anxiously.
—Where did she find________old pictures?—She found them in the drawer by________accident.
---- I’ve decided to attend the English speech, but I’m afraid I won’t be the best. ---- ______. You never know until you try.
Without proper lessons, you could ___ a lot of bad habits when playing the piano.